Solution of medicinal agents and solvent therefor



Patented June 3, 194l- UNITED STATES PATENT OFFICE SOLUTION 0F BIEDICINAL AGENTS AND SOLVENT THEREFOR Wilhelm Wenner, Basel, Switzerland, assignor to Hofimann-La Roche Inc Nutley, N. 1., a corporation of New Jersey No Drawing. Application December 19, 1938, Se-

rial No. 246,755. 1938 2 Claims.

tion 515,332). However, it could not be anticipated from such use that veratryl alcohol could be employed in the manufacture of aqueous solutions of medicinal substances diflicuitly soluble or insoluble in water.

Veratryl alcohol is characterised by low toxicity and by hardly any irritating efiect so that solutions can be; prepared therewith which are suitable for peroral, percutaneous of intravenous administration.

In Germany January 10,

Example 1 Bydissolving 2 parts by weight of oestrin in 1000 parts by weight of veratryl alcohol and addition-of 9000 parts by weight'ot water, a sterilisable solution is obtained which is suitable for in- Jection Purp ses.

Example 2 2 parts by weight of oestrin are dissolved in 500 parts by weight of veratryl alcohol. After cooling 450 parts by weight of waterare added. A clear solution is obtained.

I claim: I r

1. As a new product a homogeneous liquid mixture comprising a dhhcultly soluble horme, 3,4- dimethoxy-benzylalcohol and water.

2'. As a new product a homogeneous liquid mixture comprising oestrin, 3,4-dimethow-benzyl alcohol and water.

1 WIIHELM WENNER.

Patent No. 2,2hh', 277.

CERTIFICATE OF Q RRECTIQN.

' June}, 19).;1. 'wII;HELM WENNER.

It is hereby certified that error appars 1n the; printed specification of. the above numbered pat ent grequ'irping correction as follows: Second e01 umn, line 15, claim 1, for "horme"'re-ad --hormor 1e--; and that the said Let ters Patent shouldb re'ad with this correction threin that the same may conform'tio the record'of-the cas e in the Patent Offic.

(Sail) Signed-and se'aled \this and'day'of September, A. D. 191d.

' Hem-y Van Arsdale', Acting Copunissiqner pf Patents. 

